Dies for use in the manufacture of inlaid linoleum.



J WRIGHT.

, DIES FOR USE IN THE MANUFACTURE OF INLAID LINOLEUM.

APPLICATION FILED DEO.19, 1910.

Patented June 16, 1914.

2 SHEETS-SHEET 1 u n u u n n n n n n m 'fi w COLUMBIA PLANouRAPu 10.,wAsmNu'mN. D. c.

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Patented June 16, 1914.

J. WRIGHT.

APPLICATION FILED D30. 19, 1910.

DIES FOR USE IN THE MANUFACTURE OF INLAID LINOLBUM.

/ N [/5 N 7' O Jo H 1v W R I c; H f E V H TTo/FNE KS COLUMBIA PLANOORAPH60., WASHINGTON, D. C.

JOHN WRIGHT, 0F POLLOKSHIELDS, GLASGOW, SCOTLAND.

DIES FOR USE IN THE MANUFACTURE OF INLAID LINOLEUM.

Specification of Letters Patent.

Patented June 16, 1914.

Application filed December 19, 1910. Serial No. 598,004.

To all whom it may concern Be it known that I, J OI-IN WRIGHT, a subjectof the King of Great Britain and Ireland, and a resident ofPollokshields, Glasgow, Scotland, have invented certain new and usefulImprovements in Dies for Use in the Manufacture of Inlaid Linoleum, andof which the following is the specification.

The invention relates to male and female dies of the type used forextruding successively separate tiles from separate and successivesheets of differently colored linoleum material onto a backing sheetupon which they are afterward secured and agglomerated by passagethrough presses or calenders.

The machine in which the dies are used may be of the type in which theweb of backing material is made to travel by a step-by-step motion fromunderneath each pair of male and female dies to underneath thesucceeding pair, the dies being both raised when the backing material istraveling. At each step each separate and successive sheet ofdifferently colored linoleum is brought into position between the twodies. This may be done in various ways; for

example, continuous webs of the differently colored linoleum may be madeto travel between the dies with a step-by-step movement; or sheets oflinoleum may be introduced by hand between the dies. Or where the fabricis being made by hand, both dies as well as the sheets of linoleum arechanged until the part of the pattern for the length of backing on theplaten is made up.

The invention has for its object by providing simple and effective meansfor sup porting certain parts of the female die during the process toobviate the necessity for those heavy and expensive female dies hithertonecessary, and rendering it possible to use instead thin and lightfemale dies easily and cheaply produced and easily handled.

It is obvious that as the process proceeds, certain parts of successivefemale dies become supported during the descent into them of the maledies by tiles already laid from other dies upon the backing material.Other parts are not so supported, and it is because of these unsupportedparts that it has been necessary to make the female dies sulficientlyheavy and substantial to resist the pressure put upon them at thedescent of the male die. Where there is a tile lying upon the backingunder a female die, that die upon a backing.

upon the descent of the male die rests upon the tile, and the tile beingsupported by the platen or table beneath the backing the weightis'thrown thereupon and its strength 1s adequate to resist the pressureapplied.

According to the invention, there are provlded at such parts of thevarious and successive female dies as there be no tiles beneath, meansfor transferring the load im posed by the descending male die from thefemale die to the platen beneath the backing. These means consist ofribs, pins, or plates of adequate resistance and of a thickness equal tothe material of the tiles applied beneath the female die.

In order that the invention and the manner of performing the same may beproperly understood there is hereunto appended a sheet of explanatorydrawings showing diagrammatically in Figure 1 a plan of a series oftiles of different colors to be deposited, similarly in section in Fig.2 a female die, a male die, a backing sheet and a sheet of the linoleummaterial, similarly in Fig. 3 a second female die and the other parts,and similarly in Fig. I a third female die and the other partsit beingunderstood that for the sake of clear illustration many details such asthe platen upon which the backing material rests, the stripping platesfor the dies and the other parts forming no part of the presentinvention are omitted. Figs. 5 to 8 inclusive are plan views of foursuccessive dies for the manufacture ofa piece of inlaid linoleum inwhich four different colors are employed to form at intervals in a plainstrip, a four color pattern.

In Fig. 1 there are indicated six color tiles A B C D E F to besuccessively deposited Now, as in Fig. 2, let it be supposed that fromthe second color sheet B the first tile is to be extruded onto the backing sheet G (which lies upon the machine platen not shown) by a male dieH through a female die J. No former tile has been deposited, sothefemale die J is unsupported. There is therefore applied to its underside contiguously to the die aperture a series of supporting ribs Jwhich ribs might instead be a series of short pins, or a plate coveringthe die, but in any case of a thickness equal to the thickness of thecolor sheet B.

In Fig. 3 the tile from the third color sheet C is to be deposited, andaccordingly the backing with the deposited tiles, B, is

freed from the dies, H and J, and the male dies, H and female dies, Jfor the tiles, C, come into use and are put in place over the depositedtile, B, with the result that the tile B formerly deposited now supportspart of the female die, therefore that die only requires support by theribs J or their equivalents at other parts contiguously to the dieaperture. Again, in Fig. A, the tile from the fifth color sheet E is tobe deposited. There are already two tiles B C in place to sup port thenew female die J which is put in place over the already deposited tilesB and C. The ribs J or their equivalents are arranged accordingly. Andso on until for the last color the last female die is supported by thepreviously deposited tiles of all the other colors and no ribs orequivalents are then required.

In Figs. 5 to 8 inclusive I have shown four successive dies used in themanufacture of a piece of inlaid linoleum in which four different colorsare employed to form, at intervals in a plain strip, a four-colorpattern. Thus Fig. 5 shows the female die J through which pieces oflinoleum are to be punched to deposit a number of squares all of onecolor on the backing beneath the female die. As there are no tiles oflinoleum beneath this first die, the apertures in the latter aresurrounded by supports or ribs J all around each aperture. Assuming thatthe dies are to be worked as in my Patent 1,005,587, all the pairs ofmale and female dies are raised, and the backing then advanced a step.This brings the backing, with the tiles deposited thereon through thedie in Fig. 5, beneath the female die in Fig. 6 in such position thatthe deposited tiles act as supports to the second female die aroundparts of certain apertures in it, these deposited tiles being shown at Bhatched in broken lines. The die, 011 the other sides of the apertures,not being supported by tiles underneath, re quires to be supported thereby the ribs. The same thing takes place when the backing, with the tilesdeposited on it by the dies in Figs. 5 and 6, has advanced beneath thedie in Fig. 7. Here again where the die is not supported by underlyingtiles, ribs have to be used at the unsupported sides of the apertures.Finally, in Fig. 8, it will be seen that as tiles surround all the foursides of the apertures in it, no supporting ribs are required around theapertures in the die there used. If desired, this last die may be usedto deposit the strips of plain linoleum between each longitudinal stripof pattern and the comparatively large apertures, in this case marked K,are surrounded by supporting ribs J The strip of plain inatcrial, ifdeposited through this die, must, of course, be of the same color as thefour pieces then being inserted in the pattern strips; but, if anothercolor other than any of those already used is wanted for this plainpart, another pair of dies would of course have to be provided, and thebacking with the pattern strips on it advanced another step. Of course,when the fabric is made by hand the dies as well as the sheets oflinoleum may be changed and the backing on the platen not moved untilthe pattern is completed for that length of backing.

lVhat I claim is 1. In a machine for making linoleum or the like, afemale die of relatively light weight and overlying a suitably supportedbacking for tiles, said die having elements on its underside for spacingthe bottom of the die above the backing and arranged so as toaccommodate previously cut tiles carried by said backing, certain ofsaid spacing elements being located immediately adjacent the dieapertures and supported on the backing, and said die having portions toreceive thereunder and to rest upon previously cut tiles.

2. In a. machine for making linoleum or the like, a series of femaledies overlying a suitably supported backing for tiles, said dies havingdie apertures and having bottom projections adapted to be supported fromthe backing and to space the dies above said backing, and to affordspaces to accommodate previously laid tiles, said projections beingvariously arranged only at the edges of the die apertures which areunsupported by underlying tiles, and decreasing in number in the diesarranged toward the discharge end of the machine, substantially asdescribed.

In testimony whereof I have signed my name to this specification, in thepresence of two subscribing witnesses.

JOHN WRIGHT.

lVitnesses DAVID FERGUSON, lVILrRnn HUNT.

Copies of this patent may' be obtained for five cents each, byaddressing the Commissioner of latents,

' Washington, D. 0.

